GHSA-9pm8-vwc5-w2hm: Fat free crm Id - Any Authenticated User Vulnerability

LOW
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CWE-639
Published
Advisory Summary

GHSA-9pm8-vwc5-w2hm is a LOW id - any authenticated user vulnerability (CWE-639: Authorization Bypass Through User-Controlled Key) affecting Fat free crm libraries in the RubyGems ecosystem. The issue involves id - any authenticated user can hit this endpoint and delete emails by id. Remediation is available by upgrading affected packages to version 0.26.0.

GHSA-9pm8-vwc5-w2hm at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-9pm8-vwc5-w2hm
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-639: Authorization Bypass Through User-Controlled Key
Affected Product Fat free crm
Package Ecosystem RubyGems
Published Date
Last Updated

How to Fix GHSA-9pm8-vwc5-w2hm

To remediate this vulnerability, upgrade all affected Fat free crm dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

fat_free_crm fixed: 0.26.0 
Upgrade fat_free_crm to 0.26.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for fat_free_crm

How to Check if You Are Affected

To determine whether your application is affected by GHSA-9pm8-vwc5-w2hm, inspect your project dependencies for Fat free crm:

inspect dependencies for fat_free_crm

Analyze the terminal output to locate any version of Fat free crm in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.26.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-639: Authorization Bypass Through User-Controlled Key, where the system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. In Fat free crm, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact Authenticated users can delete emails imported into the system assigned to another user; where the [Email Dropbox](https://github.com/fatfreecrm/fat_free_crm/wiki/Email-Dropbox) is in use. ### Patches Fixed in v0.26.0 ### Workarounds Disable use of email dropbox.

GHSA-9pm8-vwc5-w2hm Affected Fat free crm Versions

1 component(s)
Fixed Versions:
0.26.0
Product / Package Ecosystem Affected Versions Fixed Version
fat_free_crm
gem/fat_free_crm
RubyGems
< 0.26.0
0.26.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/fatfreecrm/fat_free_crm/security/advisories/GHSA-9pm8-vwc5-w2hm
Fat free crm Source Repository REPOSITORY
https://github.com/fatfreecrm/fat_free_crm

Frequently Asked Questions

What is GHSA-9pm8-vwc5-w2hm?
GHSA-9pm8-vwc5-w2hm is a security vulnerability in Fat free crm involving id - Any authenticated user can hit this endpoint and delete emails by ID under CWE-639: Authorization Bypass Through User-Controlled Key.
Which Fat free crm versions are affected?
Affected versions include releases prior to 0.26.0 across affected packages: fat_free_crm.
What version fixes GHSA-9pm8-vwc5-w2hm?
Upgrading to 0.26.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is fat_free_crm affected?
Yes, fat_free_crm is affected in releases prior to 0.26.0. Upgrade your dependency to 0.26.0 or later.
What CWE is associated with GHSA-9pm8-vwc5-w2hm?
GHSA-9pm8-vwc5-w2hm is classified under CWE-639: Authorization Bypass Through User-Controlled Key (The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.).
How can I check RubyGems dependencies for GHSA-9pm8-vwc5-w2hm?
Run the dependency tree command: 'inspect dependencies for fat_free_crm'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-9pm8-vwc5-w2hm",
  "modified" : "2026-04-14T01:07:01Z",
  "published" : "2026-04-14T01:07:01Z",
  "aliases" : [ ],
  "summary" : "Fat Free CRM has BOLA in DELETE /emails/:id - Any authenticated user can hit this endpoint and delete emails by ID",
  "details" : "### Impact\n\nAuthenticated users can delete emails imported into the system assigned to another user; where the [Email Dropbox](https://github.com/fatfreecrm/fat_free_crm/wiki/Email-Dropbox) is in use.\n\n### Patches\n\nFixed in v0.26.0\n\n### Workarounds\n\nDisable use of email dropbox.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "fat_free_crm"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.26.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/fatfreecrm/fat_free_crm/security/advisories/GHSA-9pm8-vwc5-w2hm"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/fatfreecrm/fat_free_crm"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-639" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-14T01:07:01Z",
    "nvd_published_at" : null
  }
}